wip: migrate to bun

test/take.spec.ts

@@ -0,0 +1,83 @@
+import assert from 'node:assert';
+import lodashStable from 'lodash';
+import { falsey, LARGE_ARRAY_SIZE, isEven } from './utils';
+import take from '../src/take';
+
+describe('take', () => {
+    const array = [1, 2, 3];
+
+    it('should take the first two elements', () => {
+        assert.deepStrictEqual(take(array, 2), [1, 2]);
+    });
+
+    it('should treat falsey `n` values, except `undefined`, as `0`', () => {
+        const expected = lodashStable.map(falsey, (value) => (value === undefined ? [1] : []));
+
+        const actual = lodashStable.map(falsey, (n) => take(array, n));
+
+        assert.deepStrictEqual(actual, expected);
+    });
+
+    it('should return an empty array when `n` < `1`', () => {
+        lodashStable.each([0, -1, -Infinity], (n) => {
+            assert.deepStrictEqual(take(array, n), []);
+        });
+    });
+
+    it('should return all elements when `n` >= `length`', () => {
+        lodashStable.each([3, 4, 2 ** 32, Infinity], (n) => {
+            assert.deepStrictEqual(take(array, n), array);
+        });
+    });
+
+    it('should work as an iteratee for methods like `_.map`', () => {
+        const array = [
+                [1, 2, 3],
+                [4, 5, 6],
+                [7, 8, 9],
+            ],
+            actual = lodashStable.map(array, take);
+
+        assert.deepStrictEqual(actual, [[1], [4], [7]]);
+    });
+
+    it('should work in a lazy sequence', () => {
+        var array = lodashStable.range(1, LARGE_ARRAY_SIZE + 1),
+            predicate = function (value) {
+                values.push(value);
+                return isEven(value);
+            },
+            values = [],
+            actual = _(array).take(2).take().value();
+
+        assert.deepEqual(actual, take(take(array, 2)));
+
+        actual = _(array).filter(predicate).take(2).take().value();
+        assert.deepEqual(values, [1, 2]);
+        assert.deepEqual(actual, take(take(_.filter(array, predicate), 2)));
+
+        actual = _(array).take(6).takeRight(4).take(2).takeRight().value();
+        assert.deepEqual(actual, _.takeRight(take(_.takeRight(take(array, 6), 4), 2)));
+
+        values = [];
+
+        actual = _(array)
+            .take(array.length - 1)
+            .filter(predicate)
+            .take(6)
+            .takeRight(4)
+            .take(2)
+            .takeRight()
+            .value();
+        assert.deepEqual(values, [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]);
+        assert.deepEqual(
+            actual,
+            _.takeRight(
+                take(
+                    _.takeRight(take(_.filter(take(array, array.length - 1), predicate), 6), 4),
+                    2,
+                ),
+            ),
+        );
+    });
+});